indoor
adjective /ˈɪndɔː(r)/
/ˈɪndɔːr/
[only before noun]- located, done or used inside a building
- an indoor swimming pool
- indoor games
- Poor indoor air quality can result in increased risk of asthma and allergies.
Oxford Collocations DictionaryIndoor is used with these nouns:- arena
- athletics
- court
- …
- relating to sports played indoors
- the world indoor 200 metres champion
Word Originearly 18th cent. (superseding earlier within-door): from in (as a preposition) + door. Compare with indoors.